Abstract
Deficit irrigation is one of the most important methods of management of irrigation to save irrigation water without much damage to plants. Field experiment was conducted in 2010 to study the effect of irrigation deficit and method of irrigation on yield and yield components and water use efficiency of cotton in Orzouiyeh region of Kerman province of Iran. Treatments consisted of three levels of water requirement: 100, 80 and 60% as main factors and two systems of irrigation: surface drip irrigation and subsurface drip irrigation as sub factors. The study showed that under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9% with a saving of 1500 m3ha-1 water. However, 80% water treatment lead to decrease of 12% in yield, 11% in the number of bolls per plant and 2.5% in boll weight. The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water), but it resulted in a decrease of 38% in cotton yield, 37% in the number of bolls per plant and 24% in boll weight. In general use of 80% water deficit method in cotton cultivation using subsurface irrigation could help in saving of irrigation water and increasing water use efficiency under drought conditions prevailing in Orzouiyeh region of Kerman province of Iran. Key words: Cotton, irrigation deficit, irrigation strip, Kerman, water use efficiency, yield.
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Claims 11
Claim · model-written summary
Under subsurface irrigation, 80% water requirement increased water use efficiency by 4.9% compared with 100% water requirement.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- 80% water requiremente1
- Outcome
- water use efficiencye1
- Direction
- increasede1
- Value
- 4.9%e1
- Qualifier
- subsurface irrigatione1
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
Claim · model-written summary
The 80% water requirement treatment saved 1500 m3ha-1 of irrigation water relative to 100% water requirement.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 80% water requiremente1
- Outcome
- savinge3
- Direction
- decreaseinferrede3
- Value
- 1500 m3ha-1e3
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e3“with a saving of 1500 m3ha-1 water”
Claim · model-written summary
The 80% water treatment decreased cotton yield by 12%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 80% water treatmente4
- Outcome
- yielde4
- Direction
- decreasee4
- Value
- 12%e4
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e4“80% water treatment lead to decrease of 12% in yield”
Claim · model-written summary
The 80% water treatment decreased the number of bolls per plant by 11%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 80% water treatmente5
- Outcome
- number of bolls per plante5
- Direction
- decreasee5
- Value
- 11%e5
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e5“80% water treatment lead to decrease of 12% in yield, 11% in the number of bolls per plant and 2.5% in boll weight”
Claim · model-written summary
The 80% water treatment decreased boll weight by 2.5%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 80% water treatmente5
- Outcome
- boll weighte5
- Direction
- decreasee5
- Value
- 2.5%e5
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e5“80% water treatment lead to decrease of 12% in yield, 11% in the number of bolls per plant and 2.5% in boll weight”
Claim · model-written summary
The 60% water treatment reduced water consumption by 40% relative to 100% water requirement.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 60% water treatmente6
- Outcome
- consumption of watere6
- Direction
- lesse6
- Value
- 40%e6
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e6“The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water)”
Claim · model-written summary
The 60% water treatment saved 3200 m3ha-1 of water relative to 100% water requirement.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 60% water treatmente6
- Outcome
- savede6
- Direction
- decreaseinferrede6
- Value
- 3200 m3ha-1e6
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e6“The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water)”
Claim · model-written summary
The 60% water treatment decreased cotton yield by 38%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 60% water treatmente6
- Outcome
- yielde7
- Direction
- decreasee7
- Value
- 38%e7
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e6“The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water)”
e7“it resulted in a decrease of 38% in cotton yield, 37% in the number of bolls per plant and 24% in boll weight”
Claim · model-written summary
The 60% water treatment decreased the number of bolls per plant by 37%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 60% water treatmente6
- Outcome
- number of bolls per plante7
- Direction
- decreasee7
- Value
- 37%e7
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e6“The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water)”
e7“it resulted in a decrease of 38% in cotton yield, 37% in the number of bolls per plant and 24% in boll weight”
Claim · model-written summary
The 60% water treatment decreased boll weight by 24%.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 60% water treatmente6
- Outcome
- boll weighte7
- Direction
- decreasee7
- Value
- 24%e7
- Comparator
- 100% water requiremente1
- Setting
- Orzouiyeh region of Kerman province of Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton under drought stress conditions”
e1“under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9%”
e2“cotton in Orzouiyeh region of Kerman province of Iran”
e6“The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water)”
e7“it resulted in a decrease of 38% in cotton yield, 37% in the number of bolls per plant and 24% in boll weight”
Claim · model-written summary
The 80% water deficit method with subsurface irrigation could help save irrigation water and increase water use efficiency in cotton under drought conditions.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- saving of irrigation water and increasing water use efficiencye0
- Qualifier
- under drought conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“use of 80% water deficit method in cotton cultivation using subsurface irrigation could help in saving of irrigation water and increasing water use efficiency under drought conditions”
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See all 399 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.